title: The effect of low fresh gas flow rate on sevoflurane consumption.
abstract: BACKGROUND
  In an era of medical cost containment, cost-effectiveness has become a major focus in healthcare. The effect of a new policy on the use of low fresh gas flow during maintenance of general anesthesia with volatile anesthetics was evaluated.
  
  
  METHODS
  The numbers and duration of general anesthesia cases using sevoflurane 5 weeks prior to and 15 weeks after policy implementation were retrieved from the electronic medical records database. The number of sevoflurane bottles consumed was also assessed. The anesthesia hours per bottle of sevoflurane were compared before and after policy implementation.
  
  
  RESULTS
  The number of anesthesia hours performed per bottle of sevoflurane increased by 38.3%. The effect varied over time and tended to fade with time.
  
  
  CONCLUSIONS
  The implementation of a low fresh gas flow rate policy effectively reduces the amount of sevoflurane consumed for the same duration of anesthesia.
authors.affiliation: Department of Anesthesiology and Pain Medicine, Boramae Medical Center, Seoul, Korea.
authors.forename: Ho-Geol
authors.initials: HG
authors.lastname: Ryu
authors.forename: Ji-Hyun
authors.initials: JH
authors.lastname: Lee
authors.forename: Kyung-Ku
authors.initials: KK
authors.lastname: Lee
authors.forename: Nam-Su
authors.initials: NS
authors.lastname: Gil
authors.forename: Chong Soo
authors.initials: CS
authors.lastname: Kim
authors.forename: Sung-Eun
authors.initials: SE
authors.lastname: Sim
authors.forename: Sang Chul
authors.initials: SC
authors.lastname: Lee
authors.forename: Seong-Won
authors.initials: SW
authors.lastname: Min